Coping Strategies and Factors Related to Problematic Substance Use and Behavioral Addictions Among Adolescents and Young Adults with Cancer.

Purpose: This study aimed to explore and identify the factors associated with problematic substance use (alcohol, tobacco, and cannabis) and behavioral addictions (internet and eating disorders) over time in adolescents and young adults (AYAs) treated for cancer. Methods: AYAs newly diagnosed with cancer, 15-25 years of age, completed a questionnaire during their hospitalization (T1), assessing their consumption of alcohol, tobacco, and cannabis (The Alcohol Use Disorders Identification Test; The Smoking Behavior Questionnaire; and The Cannabis Abuse Screening Test), their internet use (The Internet Addiction Test), their body preoccupations (The Eating Attitudes Test), as well as their coping strategies (Brief COPE) and emotional adjustment (The Hospital Anxiety and Depression Scale). Questionnaires were completed again 6 months later (T2). Results: Seventy-three AYAs were included at T1 and 21 AYAs at T2. Nearly one out of two (46.58%) AYAs had a problematic substance use or behavioral addiction after cancer diagnosis (T1). Problematic use of internet was frequently reported (23.29%), as well as harmful alcohol consumption or addiction (16.44%) and cannabis dependence (12.33%). The main factor related to problematic substance use was being older, while the main factor related to behavioral addiction was having a higher anxiety score. Substance use as a coping strategy was used more frequently by AYAs with problematic substance use and emotional support as a coping strategy was used more frequently by AYAs with a behavioral addiction. Conclusions: High rates of problematic substance use and behavioral addiction were reported in our sample. AYAs surveyed had high problematic use of cannabis and high internet use. Attention to substance use and addictive behaviors is recommended to ensure optimal care.